run-script-region.el

(defun run-script-region ()
  "指定範囲内のコードをスクリプトとして実行します"
  (interactive)
  (if (>= (region-beginning) (region-end))
      (message "no selected region")
    (let* ((run-script-region-file-path "/tmp/run-script-region")
           (extention (progn
                        (string-match "\\..*" (buffer-name))
                        (substring (buffer-name) (+ (match-beginning 0) 1) (match-end 0))))
           (command (cond ((equal extention "js") "node")
                          ((member extention '("pl" "pm" "t")) "perl")
                          ((equal extention "py") "python")
                          ((equal extention "rb") "ruby")
                          ((equal extention "scala") "scala")
                          ((equal extention "sh") "sh"))))
      (write-region (region-beginning) (region-end) run-script-region-file-path nil)
      (compile (format "%s %s" command run-script-region-file-path)))))